Scanning

Scan devices

A device is required to make a transaction , at this point you can scan devices.

You will have to use the SDKDeviceScanService to scan for devices, and select any of the found devices. To create a SDKDeviceScanService, you can use the SDKDeviceScanServiceFactory.create() method to create one.

val readerService = SDKDeviceScanServiceFactory.create()

Then, simply use one of the two scan method (one for using it from an Activity and other from a Fragment) passing the corresponding arguments. To use this, you must first ask for those permissions related to bluetooth.

class MyActivity : AppCompatActivity(), SDKScannerResultListener {
     fun startScanning() {
        readerService.scan(this, 120000)
    }
}

The most important parameter the scan method receives is the SDKScannerResultListener, this listener is used to handle the result the results of the scanning process.

override fun onDeviceListUpdated(list: List<SDKDevice>) {
    // TODO: Implement the logic to handle the list of devices found by the scanner
    showDevicesToSelectDialog(list)
}

override fun onScanFinish() {
    // TODO: Implement the logic to handle the scanning process being stopped
}

override fun onError(type: SDKScannerResultListener.ErrorType, message: String?) {
    // TODO: Implement the logic to handle the different errors that may happen when scanning
    handleScannerError(type, message)
}